CN103473842A - Visualization remote access control system and access control method therefor - Google Patents

Visualization remote access control system and access control method therefor Download PDF

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Publication number
CN103473842A
CN103473842A CN2013104469165A CN201310446916A CN103473842A CN 103473842 A CN103473842 A CN 103473842A CN 2013104469165 A CN2013104469165 A CN 2013104469165A CN 201310446916 A CN201310446916 A CN 201310446916A CN 103473842 A CN103473842 A CN 103473842A
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CN
China
Prior art keywords
ip
device
control terminal
based switching
doorway machine
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CN2013104469165A
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Chinese (zh)
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CN103473842B (en
Inventor
程德山
宋华茂
曹海传
钮彬
黄全胜
刘梁宝
王李冬
杜荣良
陶林
张亚利
吴颖凡
李�浩
张礼莉
徐强
周苏安
杜旭峰
叶成开
马波
Original Assignee
国家电网公司
安徽省电力公司六安供电公司
安徽中兴继远信息技术股份有限公司
深圳市震有科技有限公司
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Priority to CN201310446916.5A priority Critical patent/CN103473842B/en
Publication of CN103473842A publication Critical patent/CN103473842A/en
Application granted granted Critical
Publication of CN103473842B publication Critical patent/CN103473842B/en

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Abstract

The invention discloses a visualization remote access control system and an access control method therefor. An electronic-control door lock is connected to a digital visualization entrance machine by a communication bus. The digital visualization entrance machine, an IP soft switch device, an application server and a control terminal are connected by an IP network. The digital visualization entrance machine transmits an access request to the control terminal by the IP soft switch device, the digital visualization entrance machine and the control terminal confirm operator identity by a video communication system, then the control terminal transmits the confirmed information to the IP soft switch device, the IP soft switch device transmits an access command to the digital visualization entrance machine, and the digital visualization entrance machine opens the electronic-control door lock. Through the visualization remote access control system and the access control method therefor, maintainers can conveniently and momentarily enter into or get out of a transformer station and work efficiency is improved.

Description

Visual remote access control device and access control method thereof

Technical field

The present invention relates to a kind of visual remote access control device and access control method thereof, especially a kind of access control device of the visual remote for transformer station and access control method thereof.

Background technology

Along with technical progress, transformer station is to unmanned on duty or few peopleization future development on duty, and when the maintainer need to arrive transformer station and does maintenance work, the bar that opens the door is walked the papery flow process, need to look for leaders to sign.Simultaneously administrative authority's substation field that also needs to send someone opens the door to the maintainer, has greatly affected work efficiency.

IP-based switching's appliance arrangement is the control functional entity of next generation network (NGN), the business that has a requirement of real-time for next generation network provides to call out to be controlled and connection control function, and between Softswitch and various media gateway, terminal, application server, other Softswitch, the employing standard agreement is communicated by letter mutually.Video calling is exactly by terminal and network, makes the caller who is in strange land not only can hear sound each other, but also can see the other side's image and background, the caller can be obtained than phone and enrich to obtain many various information.Softswitch separates the control data stream of video calling and business data flow, by software, realizes connecting control, translation and the functions such as routing, gateway management, calling control, Bandwidth Management, signaling, security and generation call detail record.The visual doorway machine upstream Interface of network digital adopts the Ethernet architecture operation, with reference to Internet TCP/IP and SIP, the ITU of International Telecommunication Association, H.323 waits main flow communication protocol, utilizes data communication network, can complete audio/video communication and control function.

At present, because a lot of transformer stations have realized unmanned on dutyly, need certain flow process during turnover transformer station.The maintenance and repair personnel need to first look for the leaders signature, and arranging the substation management personnel by the higher level is that the maintenance and repair staff opens the door to transformer station.Thus, often delay maintenance maintenance work, made the work efficiency of the maintenance maintenance of transformer station reduce.Therefore, just need a kind of intelligentized gate control system, make the maintenance and repair personnel can enter more easily transformer station, improve the maintenance and repair work efficiency of transformer station.

Summary of the invention

The present invention is the weak point existed in above-mentioned prior art for avoiding, and a kind of conveniently visual remote access control device and access control method thereof are provided, so that the maintenance maintenance personnel pass in and out at any time transformer station, increase work efficiency.

The present invention be the technical solution problem by the following technical solutions.

The visual remote access control device, its design feature is to comprise electric control door lock, digital visual doorway machine, IP-based switching's device, application server and control terminal, between described electric control door lock and digital visual doorway machine, by communication bus, be connected, described digital visual doorway machine, IP-based switching's device, between application server and control terminal, by IP network, be connected, the operator is to the solicit operation of being opened the door of digital visual doorway machine, send to control terminal the request of opening the door by IP-based switching's device by the digital visual doorway machine, digital visual doorway machine and control terminal carry out video calling by video communication system, the operator is carried out to identity validation, confirm after identity by control terminal the communication confirmed to IP-based switching's device, by IP-based switching's device by the command routing that opens the door to the digital visual doorway machine, open electric control door lock by the digital visual doorway machine, for the operator opens the door.

The design feature of visual remote access control device of the present invention also is:

Described communication bus is RS232 or RS485.

Described control terminal is the visual indoor set of network digital, computer, panel computer or smart mobile phone.

The present invention also provides a kind of access control method of visual remote access control device.

The access control method of described visual remote access control device, it comprises the following steps:

Step 1: the operator is operated the digital visual doorway machine, sends the request of opening the door; The digital visual doorway machine sends to IP-based switching's device by the network solicited message of opening the door;

Step 2: when IP-based switching's device is received the information that need to be disposed electric control door lock that the visual doorway machine of network digital sends, according to archive information and the management information of typing in advance, determine to which control terminal and send connection request;

Step 3: after described control terminal is received the connection request that IP-based switching's device sends, and set up point-to-point audio & video communication connection between the visual doorway machine of network digital, the operator is carried out to identity validation; After confirming operator's information, control terminal will send to the operational order of door lock IP-based switching's device;

When step 4:IP soft switch device is received the order of being disposed for electric control door lock that control terminal sends, can determine the disposal method to door lock, and disposal method is sent to the visual doorway machine of network digital;

Step 5: when the visual doorway machine of network digital is received the order of being disposed for electric control door lock that IP-based switching's device sends, by communication bus to the electric control door lock executable operations;

Step 6: after electric control door lock executes operation, execution result is fed back to IP-based switching's device and control terminal, IP-based switching's device and control terminal can record associative operation automatically;

Step 7: the operating personnel that are positioned at the visual doorway of network digital pusher side carry out audio & video with the operating personnel that are positioned at the control terminal side and communicate by letter, and confirm the execution result of electric control door lock.

In described step 4, when IP-based switching's device is received the order of being disposed for electric control door lock that control terminal sends, can according to circumstances determine different disposal methods;

(1), if be preset as and do not need password to carry out secondary-confirmation between this control terminal and IP-based switching's device, the order that IP-based switching's device will be disposed door lock directly is forwarded to the visual doorway machine of network digital;

(2), if be preset as and need password to carry out secondary-confirmation between this control terminal and IP-based switching's device, after control terminal must be inputted correct password, IP-based switching's device just can be forwarded to the visual doorway machine of network digital by the order of disposing door lock.

In the audio & video communication process of described step 4 and step 7, IP-based switching's device will, according to the order of control terminal, select whether whole process is carried out to video and audio recording.

Compared with the prior art, beneficial effect of the present invention is embodied in:

Visual remote access control device of the present invention and access control method thereof, belong to the combination of IP-based switching's device audio/video communication and remote control technology, by the visual doorway machine of network digital and control terminal, (control terminal can be the visual indoor set of network digital, computer, panel computer, smart mobile phone etc.) be registered on IP-based switching's device, when the visual doorway machine of network digital initiates to open the door request, IP-based switching's device is automatically according to the numerical order set in advance, setting up audio frequency and video between the visual doorway machine of network digital and control terminal is connected, control terminal can carry out authentication by audio frequency and video clamshell doors promoter, and send control command to IP-based switching's device, IP-based switching's device is according to the authority of control terminal, return command is to the visual doorway machine of network digital, after doorway machine receives orders, send instruction to door-locking system, door-locking system is opened door.The present invention is by means of the function of enriching of IP-based switching's device, the visual doorway machine of network digital and various types of control terminal (containing customized software) are fused into one, carry out remote authentication by audio frequency and video clamshell doors applicant, and realized the Long-distance Control door interlock switch, method is convenient quick, has solved inefficient, the inconvenient problem of transformer station's entrance guard management.

Visual remote access control device of the present invention and access control method thereof, have and be convenient to the maintenance maintenance personnel and pass in and out at any time transformer station, increased work efficiency, solved inefficient, the inconvenient advantages such as problem of transformer station's entrance guard management.

The accompanying drawing explanation

The structural drawing that Fig. 1 is visual remote access control device of the present invention.

The control flow chart that Fig. 2 is visual remote access control device of the present invention.

Below pass through embodiment, and the invention will be further described by reference to the accompanying drawings.

Embodiment

Referring to accompanying drawing 1~Fig. 2, the visual remote access control device, it comprises electric control door lock, digital visual doorway machine, IP-based switching's device, application server and control terminal, between described electric control door lock and digital visual doorway machine, by communication bus, be connected, described digital visual doorway machine, IP-based switching's device, between application server and control terminal, by IP network, be connected, the operator is to the solicit operation of being opened the door of digital visual doorway machine, send to control terminal the request of opening the door by IP-based switching's device by the digital visual doorway machine, digital visual doorway machine and control terminal carry out video calling by video communication system, the operator is carried out to identity validation, confirm after identity by control terminal the communication confirmed to IP-based switching's device, by IP-based switching's device by the command routing that opens the door to the digital visual doorway machine, open electric control door lock by the digital visual doorway machine, for the operator opens the door.

Described communication bus is RS232 or RS485.

Described control terminal is the visual indoor set of network digital, computer, panel computer or smart mobile phone.

Access control method according to described visual remote access control device, on the visual doorway machine of network digital, customized software is installed, can support audio/video communication, and and IP-based switching's equipment between definition unblank/shut, the command function such as warning.Customized software is installed on control terminal, can be supported audio/video communication, and and IP-based switching's equipment between definition unblank/shut, the command functions such as Password Input, warning.On IP-based switching's device, customized software is installed, the associated profiles of typing simultaneously information, management information: the quantity and the address that comprise the visual doorway machine of network digital; The quantity of control terminal and Permission Levels etc.Start the software program on each equipment, the visual doorway machine of network digital and control terminal all are registered as the user of IP-based switching's device.IP-based switching's device also can be docked with transformer station's maintenance work electron stream management system, and electric control door lock allowed the time of opening the door to do to preset.

Access control method comprises the following steps:

Step 1: the operator is operated the digital visual doorway machine, sends the request of opening the door; The digital visual doorway machine sends to IP-based switching's device by the network solicited message of opening the door;

Step 2: when IP-based switching's device is received the information that need to be disposed electric control door lock that the visual doorway machine of network digital sends, according to archive information and the management information of typing in advance, determine to which control terminal and send connection request; In order to prevent the not in place or communication failures of certain control terminal and not connect, a plurality of control terminals and priority can be set on IP-based switching's device;

Step 3: after described control terminal is received the connection request that IP-based switching's device sends, and set up point-to-point audio & video communication connection between the visual doorway machine of network digital, the operator is carried out to identity validation; After confirming operator's information, control terminal will send to the operational order of door lock IP-based switching's device; At this moment, the operator who is positioned at the control terminal side can carry out identity validation to the operator who is positioned at the visual doorway of network digital pusher side by audio frequency, video.If docked with transformer station maintenance work electron stream management system before this, the time of opening the door that allows to electric control door lock presets, so can also with the maintenance work electron stream in the application of opening the door do further checking, the request of opening the door that meets subscription time is accepted, and the request of opening the door that surpasses subscription time is refused.

When step 4:IP soft switch device is received the order of being disposed for electric control door lock that control terminal sends, can determine the disposal method to door lock, and disposal method is sent to the visual doorway machine of network digital;

Step 5: when the visual doorway machine of network digital is received the order of being disposed for electric control door lock that IP-based switching's device sends, by communication bus to the electric control door lock executable operations;

Step 6: after electric control door lock executes operation, execution result is fed back to IP-based switching's device and control terminal, IP-based switching's device and control terminal can record associative operation automatically;

Step 7: the operating personnel that are positioned at the visual doorway of network digital pusher side carry out audio & video with the operating personnel that are positioned at the control terminal side and communicate by letter, and confirm the execution result of electric control door lock.

In described step 4, when IP-based switching's device is received the order of being disposed for electric control door lock that control terminal sends, can according to circumstances determine different disposal methods;

(1), if be preset as and do not need password to carry out secondary-confirmation between this control terminal and IP-based switching's device, the order that IP-based switching's device will be disposed door lock directly is forwarded to the visual doorway machine of network digital; This situation is adapted to be mounted within visual indoor set of network digital, desktop computer/server of fixed position etc.

(2), if be preset as and need password to carry out secondary-confirmation between this control terminal and IP-based switching's device, after control terminal must be inputted correct password, IP-based switching's device just can be forwarded to the visual doorway machine of network digital by the order of disposing door lock.It is portable panel computer or smart mobile phone etc. that this situation is suitable for control terminal.

In the audio & video communication process of described step 4 and step 7, IP-based switching's device will, according to the order of control terminal, select whether whole process is carried out to video and audio recording.

Key of the present invention is the IP data communication network of utilizing each transformer station to establish, the visual doorway machine of network digital of various places and the user that all kinds of control terminal all is registered as soft switch, the transmission of setting up audio/video communication and control command by soft switchcall server will be disperseed.

As shown in Figure 2, the concrete detailed process that the operator opens the door is as follows:

(1), the visual doorway machine of network digital initiates INVITE to the IP-based switching device and calls out, IP-based switching's device is received call request and to the control terminal request of making a call;

(2), after control terminal receives the INVITE of IP-based switching's device, attempt processing request, and reply Trying100 to IP-based switching's device and confirm; IP-based switching's device is received the Trying100 message from control terminal, and sends Trying100 to the visual doorway machine of network digital;

(3) after control terminal is finished dealing with, realize ring and send 180 ring-back message to IP-based switching's device, IP-based switching's device sends 180 ring-back message to the visual doorway machine of network digital;

(4), the backward IP-based switching of control terminal off-hook device sends 200 offhook messages, the device informing network type digital visual doorway machine the other side of IP-based switching is off-hook.The visual doorway machine of network digital is responded acknowledge message ACK to IP-based switching's device, and IP-based switching's device sends ACK to control terminal;

(5), the visual doorway machine of network digital sends RTP voice flow and RTP video flowing to control terminal, finally forms video communication;

(6), after personnel identity determines, control terminal sends to IP-based switching's device the instruction INFO that opens the door;

(7), IP-based switching's device receives the instruction INFO that opens the door from control end, and the authority at opposite end end does authentication, if terminal has the authority of opening the door, IP-based switching's device is to the visual doorway machine of the network digital request INFO that initiates to open the door;

(8), after the visual doorway machine of network digital is received the request of opening the door from IP-based switching's device, by RS485 the RS232 interface to gate control system transmit button signal, the backward IP-based switching device that opened the door is responded 200(and is completed and open the door), IP-based switching's device responds 200 to indoor terminal;

(9) after having opened the door, the visual doorway machine on-hook of network digital, and send BYE message to IP-based switching's device.IP-based switching's device sends BYE message to indoor terminal;

(10) after indoor terminal is received BYE, finish communicate by letter and send the ACK confirmation to IP-based switching's device, IP-based switching's device sends ACK information, end of conversation to the visual doorway machine of network digital again.

Visual remote access control system of the present invention adopts the mode of control terminal mandate and soft switchcall server secondary checking (optional).At first initiate request by the visual doorway machine of network digital to IP-based switching's device, soft switchcall server is selected suitable control terminal according to default management information, sets up the request of audio frequency and video conversation to its initiation.After between the visual doorway machine of network digital and control terminal, setting up video calling, soft switchcall server has been born again the function that control command transmits and secondary is verified.

Visual remote access control system of the present invention, comprise IP-based switching's device, the mechanical, electrical control door lock in the visual doorway of network digital and all kinds of control terminal.Electric control door lock connects by RS232/RS485 and the visual doorway machine of network digital, the visual doorway machine of network digital connects by IP network and IP-based switching's device, and all kinds of control terminals connect by IP network (being not limited to wired) and IP-based switching's device.

Visual remote access control system of the present invention, the point-to-point entrance guard intercommunication system that will in the past isolate by IP-based switching's device incorporates IP network, and can with work electron stream slitless connection, solved preferably the Long-distance Control demand of the maintainer of transformer station to gate control system, greatly improved work efficiency, and whole process can video and audio recording, makes each working link accomplish record, can recall.

Claims (6)

1. the visual remote access control device, is characterized in that, comprises electric control door lock, digital visual doorway machine, IP-based switching's device, application server and control terminal, between described electric control door lock and digital visual doorway machine, by communication bus, be connected, described digital visual doorway machine, IP-based switching's device, between application server and control terminal, by IP network, be connected, the operator is to the solicit operation of being opened the door of digital visual doorway machine, send to control terminal the request of opening the door by IP-based switching's device by the digital visual doorway machine, digital visual doorway machine and control terminal carry out video calling by video communication system, the operator is carried out to identity validation, confirm after identity by control terminal the communication confirmed to IP-based switching's device, by IP-based switching's device by the command routing that opens the door to the digital visual doorway machine, open electric control door lock by the digital visual doorway machine, for the operator opens the door.
2. visual remote access control device according to claim 1, is characterized in that, described communication bus can be RS232 or RS485.
3. according to claim 1 and 2 described visual remote access control devices, it is characterized in that, described control terminal can be the visual indoor set of network digital, computer, panel computer or smart mobile phone.
4. the access control method of visual remote access control device according to claim 1, is characterized in that, comprises the following steps:
Step 1: the operator is operated the digital visual doorway machine, sends the request of opening the door; The digital visual doorway machine sends to IP-based switching's device by the network solicited message of opening the door;
Step 2: when IP-based switching's device is received the information that need to be disposed electric control door lock that the visual doorway machine of network digital sends, according to archive information and the management information of typing in advance, determine to which control terminal and send connection request;
Step 3: after described control terminal is received the connection request that IP-based switching's device sends, and set up point-to-point audio & video communication connection between the visual doorway machine of network digital, the operator is carried out to identity validation; After confirming operator's information, control terminal will send to the operational order of door lock IP-based switching's device;
When step 4:IP soft switch device is received the order of being disposed for electric control door lock that control terminal sends, can determine the disposal method to door lock, and disposal method is sent to the visual doorway machine of network digital;
Step 5: when the visual doorway machine of network digital is received the order of being disposed for electric control door lock that IP-based switching's device sends, by communication bus to the electric control door lock executable operations.
Step 6: after electric control door lock executes operation, execution result is fed back to IP-based switching's device and control terminal, IP-based switching's device and control terminal can record associative operation automatically;
Step 7: the operating personnel that are positioned at the visual doorway of network digital pusher side carry out audio & video with the operating personnel that are positioned at the control terminal side and communicate by letter, and confirm the execution result of electric control door lock.
5. the access control method of visual remote access control device according to claim 4, it is characterized in that, in described step 4, when IP-based switching's device is received the order of being disposed for electric control door lock that control terminal sends, can according to circumstances determine different disposal methods;
(1), if be preset as and do not need password to carry out secondary-confirmation between this control terminal and IP-based switching's device, the order that IP-based switching's device will be disposed door lock directly is forwarded to the visual doorway machine of network digital;
(2), if be preset as and need password to carry out secondary-confirmation between this control terminal and IP-based switching's device, after control terminal must be inputted correct password, IP-based switching's device just can be forwarded to the visual doorway machine of network digital by the order of disposing door lock.
6. the access control method of visual remote access control device according to claim 4, it is characterized in that, in the audio & video communication process of described step 4 and step 7, IP-based switching's device can, according to the order of control terminal, select whether whole process is carried out to video and audio recording.
CN201310446916.5A 2013-09-26 2013-09-26 Transformer station visual remote access control device and its access control method CN103473842B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104202580A (en) * 2014-09-29 2014-12-10 北京千丁互联科技有限公司 Visual talkback device
CN104680633A (en) * 2015-02-11 2015-06-03 深圳市中瑞奇电子科技有限公司 Visual talk-back access control system device based on mobile terminal
CN106251452A (en) * 2016-08-15 2016-12-21 国网辽宁省电力有限公司鞍山供电公司 A kind of unattended operation transformer station enters the station long-range Licensing Methods and execution system
CN107065630A (en) * 2017-06-06 2017-08-18 鲁毅 A kind of power equipment case opened by centralized control system mandate and control method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2726229Y (en) * 2004-07-28 2005-09-14 沈逸林 Network medium telephone terminal
CN202736139U (en) * 2012-06-12 2013-02-13 深圳市中诺通讯股份有限公司 Dwelling unit gate access control device and area access control system based on wireless communication
CN203054962U (en) * 2013-01-18 2013-07-10 泉州佳乐电器有限公司 Building access control and community service calling system based on mobile communication network
CN103200270A (en) * 2013-04-18 2013-07-10 上海海邻电讯有限公司 Converged communication platform system based on cloud computing
CN103259944A (en) * 2013-05-10 2013-08-21 国家电网公司 Method for configuring IP soft switch system and different intranet switchboards
CN203455886U (en) * 2013-09-26 2014-02-26 国家电网公司 Visual remote access control device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2726229Y (en) * 2004-07-28 2005-09-14 沈逸林 Network medium telephone terminal
CN202736139U (en) * 2012-06-12 2013-02-13 深圳市中诺通讯股份有限公司 Dwelling unit gate access control device and area access control system based on wireless communication
CN203054962U (en) * 2013-01-18 2013-07-10 泉州佳乐电器有限公司 Building access control and community service calling system based on mobile communication network
CN103200270A (en) * 2013-04-18 2013-07-10 上海海邻电讯有限公司 Converged communication platform system based on cloud computing
CN103259944A (en) * 2013-05-10 2013-08-21 国家电网公司 Method for configuring IP soft switch system and different intranet switchboards
CN203455886U (en) * 2013-09-26 2014-02-26 国家电网公司 Visual remote access control device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"UT斯达康重拳出击第三代移动通信", 《通信世界》, no. 28, 28 October 2002 (2002-10-28) *
李海涛: "IP软交换承载网技术在联通网络中设计与应用", 《硅谷》, no. 04, 30 April 2010 (2010-04-30) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104202580A (en) * 2014-09-29 2014-12-10 北京千丁互联科技有限公司 Visual talkback device
CN104680633A (en) * 2015-02-11 2015-06-03 深圳市中瑞奇电子科技有限公司 Visual talk-back access control system device based on mobile terminal
CN106251452A (en) * 2016-08-15 2016-12-21 国网辽宁省电力有限公司鞍山供电公司 A kind of unattended operation transformer station enters the station long-range Licensing Methods and execution system
CN107065630A (en) * 2017-06-06 2017-08-18 鲁毅 A kind of power equipment case opened by centralized control system mandate and control method

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